Pamphlet covebing machine



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PAMPHLET COVERING MAQHINB. I

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. G. W. 8v H. G. HULL. PAMPHLET COVERING MACHINE.

N0. 534.219. Patented Feb. 12, 1895.

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No. 534,219. Patented Feb. 12, 1895.

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NITED STATES PATENT OFFICE.

GEORGE W. HULL AND HERBERT o; HULL, OF LOUISVILLE, KENTUCKY, ASSIGNORS OF ONE-HALF TO GEORGE 1-1. sPEoHT, OF SAME PLACE.

PAMPHLET-COVERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 534,219, dated February 12, 1895.

Application filed October 29, 1894:. Serial No. 527,334. (No model.)

To all whom it may concern.-

Be it known that we, GEORGE W. HULL and HERBERT O. HULL, citizens of the United States, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented a new and useful Improvement in Pamphlet Ooveringdl/Iaohines; and We do hereby declare the following to be a full, clear, and exact description of the same,reference being had to the accompanying drawings, in Which- Figure I, represents in side elevation partly broken away, a pamphlet-covering machine according to our invention. Fig. 1 represents a portion of the gluing device in detail. Fig. 11, is a top view of the same machine. Fig. III, is a transverse vertical section at line :11; Fig. I. Fig. IV, is a transverse vertical section at line y Fig. I. Fig. IV, is an enlarged detail view of parts shown in Fig. IV. Fig. V, is a transverse vertical section at line 2 Fig. I. Fig. V,is an enlarged detail view of parts shown in Fig. V. Fig. VI, is a top view of the carriage on a larger scale. Fig. VII, is a side elevation and Fig. VIII an end view partly in transverse section showing a modification of the perfecting device, and Fig. IX, is an under side view of a carriage.

This invention relates to machines for covering pamphlets and by the word pamphlet we mean abook of any size or thickness having a cover in a single sheet like paper. Its object is to perform automatically the various steps necessary to glue the backs of the pamphlets, to place paper covers thereon, and to compress the covered pamphlets into form.

Tothis end our invention consists in the construction and combination of parts forming a pamphlet-covering machine hereinafter more fully described and claimed.

This machine involves four sets of devices, operating upon each pamphlet at three intermittent steps.

The first device involves a receiver 33, into which the pamphlets 11, are to be dropped one at a time, by an attendant; carriage-fingers 44 attached to a rotary chain 23, by means of which the pamphlets are seized and carried from the receiver through the machine and dropped; and guides 52 for closing the fingers. q

The second device involves a glue pot 59 and means for conducting therefrom to the proper region of the back of each pamphlet just enough glue to secure the cover 16 to the pamphlet.

The third device involves a supporting table 71 for holding a pile of the required covers, means for raising the pile so that the top cover shall become stuck to the glued back of the pamphlet; means for automatically compensating for the gradually diminishing height of the pile of covers, whereby the pressure for applying each cover to its respective pamphlet will be the same; and means for moving away the remaining pile of covers so that each pamphlet may freely pass after the application of its cover.

The fourth device involves means for closing the cover up to the sides of the pamphlet and for compressing the back of the covered pamphlet to its proper thickness and firmness.

17 represents the frame of the machine.

18 is the main shaft journaled horizontally across the machine.

19 is a segmental beveled gear wheel on,tho main shaft engaging a beveled wheel 20 on a vertical shaft 21, upon which is mounted a sprocket wheel 22, that drives the carriage chain 23, and 24 is the opposite end sprocket wheel around which the chain travels like a belt in the direction of the arrows 13.

25 represents a series of carriages each provided with two wheels 26 to travel on the lower track 27, and with one wheel 28 to travel upon a midway track 29. These tracks 27 and 29 are parallel guide-ways for the carriage. There may also be another wheel 30 to travel upon this track-29, but we find that unnecessary because the upper wheel 31, traveling upon the upper track 32, supports the upper rear corner of the carriage throughout its circuit, the upper track corresponding with the other tracks in direction excepting at the end turns. The carriages are attached, by the axles of their forward wheels 26, 28, to the chain 23 at equal intervals to be drawn around thereby.

The carriages should each be a little longer than the longest pamphlet to be carried thereby, and be linked to the chain as close together as practicable, and the chain should IOC be as short as possible. To this end we use small sprocket wheels 22, 24, to carry the chain, and as each carriage is longer than the diameter of each of these wheels we provide 5 an enlarged switch loop 34 in the track 32 at one turn, and another loop 35 at the other turn of the chain so that the upper roller 31, traveling in those loops carries the rear end of the carriage in a larger curve around the small sprocket wheels, and an outerguard 117 keeps the carriage on the loop rail.

33 is the receiver into which the pamphlets to be covered are to be placed, one at a time, by an attendant.

36 is an upper side-bar and 37 alower side bar, both being fixed portions of the frame of the receiver.

38 and 39 are the opposite side bars each made independently adjustable crosswise of the machine, and provided with binding screws 40, 41, whereby they may be secured to the end bars 42 and 43 of the receiver, to

leave the proper space between the bars 36 and 38, and between the bars 37 and 39, to easily receive the pamphlet to be covered, the back thereof to rest upon the bottom 44 of the receiver and the pamphlet to be supported standing upon its back edge.

All of the side bars 36, 37, 38 and 39, slant outward and upward on their inner faces giving a wide opening to receive the pamphlet.

45 is an apron extending over the bar 38 to further broaden the receiving mouth, to aid the operator to hit the mouth in rapid feeding.

46 is the grip finger, freely hung at its rear end to the carrige 25, to project its forward end 47, into the receptacle 35, between the upper bar 36, and the lower bar 37, and to the right of the vertical plane of the bars 38,

4o 39 to reach beyond a pamphlet held thereby,

and guide it into the carriage. This finger 46 is preferably hung upon a spring 48 which is secured at its rear end 49 to the carriage, and at its forward end 50, to the finger midway of the latter, its attachment at this point being to a narrow raised lug 51 of the finger. The attaching faces of the spring and finger are so slanted that the tendency of the spring is to throw the forward end of. the finger normally out or open to receive the pamphlet becarriages 12, each of which is fitted to slide crosswise in the main frame, and is provided with a traversing screw 14 and a beveled wheel 15.

112 is a shaft, carrying wheels 113 to engage the wheels 15, and provided with a crank 114 whereby both screws 14 may be operated in conjunction to traverse the two ends of block 54 alike, because that block should always remain parallel with the opposite carriage ways 27, 29 and 31, and this traversing is to set the block for any thickness of pamphlets. The connection of the block 54 with each of its carriages 12 is by means of a screw 56 and nut 57 whereby the forward thrust of the spring 58, which acts between the block 54 and its carriage 12, is limited and yet the springs hold the guides with a yielding pressure which adjusts the holders to slight varia tions in the thickness of books. When the carriage advances, the free end of its finger 46 will be guided by the inclined rollers to close firmly upon the pamphlet and the rollers on block 54 keep the finger so closed until the pamphlet is carried through the covering process.

59 is the glue pot located upon a fixed support 60.

61 is a roller located in the glue pot. and journ aled on a lever 62 which is pivoted at 63 to a fixture of the frame. The shaft of this roller 61 is connected by a pulley and belt 64 with a pulley on the shaft 21 to be rotated whenever the shaft21 rotates.

65 is an arm of the lever 62 connected with the fixture by a spring 66 which pulls upon the arm to raise the roller 61, and the end of arm 65 comes in contact with a fixed shoulder hereinshown as, thetace of the fix ture 60, to limit the rise of the roller to the level of the floor of. the receiver 10, which locates the heightlof the back edge of the pamphlet in its passage through themachine. 67 is another arm of the lever 62 provided with lugs 68 and 69 to be engaged by a lug 70 on the carriage. V The lug 68 is adjustable along the arm 67 and it is to be set as far from lug 69 as the length to be glued on the pamphlet. In covering pamphlets a space is usually left unglued for about an inch at each end, and when the lug 7O strikes the lug 68, the arm 67 and the glue roller 61 will be pressed down, so that about an inch of the forward end of the pamphlet will pass over the glue roller untouched thereby. Then, after lug 68 is passed, the spring 66 presses the glue roller up tothe pamphlet and glues it until the lug 69 is struck by lug 70,when the roller will be again depressed to skip aninch at the rear end ofthe pamphlet.

. 71 is the table upon which a pile of the required covers is to be placed, between the side guides 72, which are located to hold the pile of covers central under the path of the pamphlets. The table 71 engages a slot 74 in a slide plate 73, to reciprocate vertically.

75 is a cord or chain secured at one end to the table and passing thence up over a pulley 76, which is journaled in a fixture of the plate 73. It goes down to spool 77around which it is wound.

78 is a balance weight upon a cord 79 that passes over a pulley to a drum 81 which is secured to the shaft 82 of spool 77. The shaft 82 is journaled in a fixture of the plate 73.

83 represents ratchet teeth on drum 81, or on a wheel upon the same shaft, and 84 is a detent engaging the said ratchet to restrain'the weight 78 from continuously revolving the drum 81, and raising the table 71 by winding the cord 75 on to the fusee 77.

85 is a cam on the main shaft 18 acting at each revolution upon the detent 84 to disengage it from the ratchet.

The slide plate 73, carrying the cover table and connections, is fitted to reciprocate about an inch vertically on the frame and it is connected with a rock-shaft 86 by an arm 87.

88 is a cam fixed on the shaft 18 to act through the roller 89 on an arm 90 to rock the shaft 86 at intervals.

91 and 92 are cheek plates located at the sides of the path of the pamphlet below the line of the carriage to steady the edge of the pamphlet while the cover is being applied and to serve as a bumper to stop the pile of covers when raised in a body on their table. The covers, when thus raised, rest at their side edge on the region 93 of the cheek plates but inward from that region each plate is scarfed off to avoid being daubed with the glue which is squeezed out at the sides between the pamphlet and the cover. The inner edge or lip of plate 91 is flush with the inner edge of the carriage 12 and the cheek plate 92 is adjustable transversely to fit pamphlets of different thickness.

94 is the perfecting table, slotted at 95 to reciprocate vertically upon guiding stud 96 which is fixed to the frame.

97 is an arm fixed on rock-shaft 86 and connected with table 94 to raise it at the same time that arm 87 of the same shaft raises the pile of covers to apply one.

98 and 99 are clamp jaws hung at both ends of each upon vertical levers 100'which are pivoted at 101 to the table 94.

102, 102, are wedges having each an 'arm 103 secured to a rock-shaft 104, and acting between opposite levers 100 to separate them at that end and close them with the jaws 98, 99 at the other end.

The jaws 98, 99 are separated by a spring 121 acting between levers 100, and the said jaws stand normally open enough to pass up at the sides of the back edge of the pamphlet and close the cover which has been glued thereon. This closing is done by the raising of the table 94 which stops when it just touches the back edge of the pamphlet. Then the wedges 102 close the jaws 98, 99 against the sides to perfect the back form of the pamphlet while the glue in it is soft. In order that this perfecting pressure may be uniform whatever the thickness of the pamphlet may be, the wedges 102 are-actuated by a weight 105 hung upon an opposite arm 106 of the rockshaft 104.

107 is a cam on the main shaft 18 acting through an arm 108 on the rock-shaft 104 to oppose the weight 105 and draw the wedges 102 out of action, and to hold them idle until the next pamphlet arrives.

The jaw 99 is adapted to be shortenedor lengthened in its shank 109 to fit pamphlets of difierent thicknesses.

At the delivery end of the machine we have shown a box 110 to catch the completed pamphlets as they drop from the carriage when its grip fingers 49 pass beyond the closing rollers 52 on the block 54, and are opened by their springs 48, to gather the books in order but as that is no part of the present invention, it is not herein shown nor described in detail.

The receiver 33, the cover table 71, and the perfecting table 94 are located at equal distances apart exactly corresponding to the space along the chain occupied by each carriage, and the segment of teeth on the wheel 19 is just sufficient to advance the chain the length of one space at each step, so that when the machine is in operation one pamphlet is being dropped into the receiver, the next one ahead of it is having its cover stuck on, and the next one ahead of it is being pressed by the perfecting jaws while the chain stands at each step.

The weight78, the drum 81 and connections between them, and the spool 77 connected with the table 71 provide the table with a yielding even pressure, and the ratchet 83, detent 84 and cam 85 limit the distance of this action upward, so that the table may be lowered from the path of the pamphlet against the action of the weight.

The operation is as followsz-The main shaft 18 revolves steadily. At each revolution the segment of Wheel 19 engages wheel 20 and the chain is advanced one step. Then it stands still the rest of the time which is about two thirds of each revolution. While the chain is thus standing still a pamphlet is to be dropped by the attendant into the receiver 35. At the next advance of the chain the fingers 46 of a carriage 25 will be closed upon the pamphlet by the rollers 52 of the guide block 53, and will be held closed by the block 54 while the carriage advances. Now

as the pamphlet arrives at the glne roller 61,

back edge of the pamphlet, the roller being revolved all the time by its belt 64. Then lug 70-depresses lug 69 leaving the rear end of the pamphlet unglued as required in practice. The carriage continuing to advance through this step, stops when the pamphlet arrives directly over the pile of covers 16. Now cam 88 engages roller 89 on arm 90 and rocks the'shaft 86, causing arm 87 to raise the table 71 an inch. This rise is more than enough to press the top cover of the pile firmly against the glued back of the pamphlet, and

the Weight 78 acting through the cord 79,.

drum 81, fusee 77, and cord which is connected with the said table 71, and passes over the roller 76 which mounts on theplate 73 that rests directly on the said arm 87.

WVhen the top of the pile of covers presses against the pamphlet, the table is depressed, raising the weight 78 a little, and at the same instant the cam raises the detent 81 so that if the movement of thedrum 81 isnot enough to pass a tooth ofits ratchet 83, the detent 84, when it returns,.will rest on the top of that tooth until the table 71 descends after applying a COVGIZ. Then the. pressure; on. top of the pile of covers being removed the table 71 will be raised relative to the plate 73, by weight 78 until drum 81 is revolved enough to engage detent 81 with the next tooth. This stops the weight 78 from continually forcing the cover pile up into the path of the pamphlet. It will be understood that when pressure is, again applied to the top of the pile of covers its yielding rolls the ratchet forward so that the rising at that time of the detent will not yet permit a ratchet tooth to pass,

but as the pile of covers. gradually decreases the ratchet 83 will be rolled forward lessand less until another tooth is reached, and then passes, as before described. By thismeans a pile of covers eighteen inches high may be applied to pamphlets,one at a time, with the same pressure throughout, the spool 77 being afusee to further equalize the pressure, and yet the force which gives this yielding pressure is restrained by means of theratchet 83 and detent 84 from acting between times to interfere .with the passage of a pamphlet. \Vhile this cover is being applied another pamphlet is to be dropped into receiver 35. Now the carriages advance another step and the first pamphlet arrives and stops at the perfecting table 94:, while the second pamphlet has been glued and arrives at the cover table 71. Then the same move of the rock shaft 86. which raises the cover table by means of arm 87 also raises the perfecting table 91, the two leaves of the cover being bent and lying between the closing jaws 98, 99 and the carriage 25 and its grip finger 16 as shown in Fig. V by means of arm 97, and the jaws 98, 99 passing up atthe sides of the pamphlet, close thelately applied cover thereon until the perfecting table just touches the back of the cover. Now, the other rock-shaft 101, which has been held out of action by cam 107 acting on its arm 108, is set. free to be actuated by the weight 105, which rocks it and inserts the wedge 102 between arms 100, whereby the jaws 98 and 99 are closed against the sides of the cover so firmly as to require the presence of the table 94 at the back to prevent spreading, thus perfecting the form of the pamphlet back. The cam 107 is so timed as to withdraw wedges 102 and permit the jaws 98, 99. to open just. before the carriage again advances. At thisstep. the carriage containing the covered and perfected pamphletpasses out beyond the guide block 54;, and its fingers being thrown open by spring 18 the pamphlet is dropped into the receiver 110.

In Fig. VII, 118 represents a, roller which is journaled in. a fixture of the frame with its upper face tangent to the line of travel of the backs of the covered pamphlet, and 119 represents side rollers. These three rollers may be located at the ends of table 94: to act in conjunction therewith to roll against the back and. sides of the covered pamphlet, as a perfecting device; or these rollers may, in some cases, serve asa substitute for the table 94 and its connections. In. that case, the perfecting rollers. would be located; next to the table. 71 and would act on the first pamphlet at the same time the second pamphlet was being glued, that is, between. stops of the carriage, thus dispensing with one stop or step.

VWe do not confine ourselves to the segmental gear wheel l9asameans of producing intermittent motion in the. chain driver, nor to the weights 78 and 105 for producing yielding pressure. will accomplish substantially the same relative motions of the dependent parts may be adopted as any equivalent in each case.

It is evident that. the rollers 52might be located on the finger 46, and the rail 55 be on the blocks 53 and 54;. but we prefer the construction shown because the carriages may thus be lighter. Possibly a sponge, a brush, awick, or some other glue-carrying device might be used in the glue pot to carry therefrom to the path of the pamphlet, but we prefer the roller described as more mechanical and reliable for thatpurpose.

The lug 69 bearsa fixed relation to the rear end of the carriage because the rear endof the pamphlet always rests there, but the lug 68 relates to the forward end and must therefore be adjustable along the carriage path to adapt itto operate the gluing device relative to pamphlets of different lengths.

It is evident that the two lugs, one adjustable, might be on the carriage to act upon one lug on the gluing device on the principle described.

It is also evident that if the weight 78 were attached directly to the cord 75 yielding pressure would beproduced upon the pile of covers so that possibly the passing pamphlet might carry away the cover glued to it, but weprefer to interpose the drum 81 with its ratchet and detent to prevent upwardpressore of the covers as soon as one is applied.

Having thusfully described our invention, what we believe to be new, and desire to secure by Letters Patent, is the following:

1. The combination in a pamphletcovering machine of achain mounted to travel around Any other mechanism that.

wheels in a horizontal plane; tracks located between the said wheels in lines tangent thereto, a series of carriages each hung by its forward end upon the chain, and provided with wheels at that end fitted to travel upon.

the said tangent tracks, also provided with another wheel at the opposite end located in a plane parallel with the plane of the aforesaid tracks; and a pair of tracks located in the said parallel plane and formed with enlarged loops around the aforesaid chain wheels, one track of this pair being outside of the other track, and the said other wheel of the carriage being fitted to travel between the two tracks of each loop substantially as described whereby the carriages may be rotated in a narrow space upon small chain driving wheels and yet be readily carried around the said small wheels.

2. The combination of a pamphlet carriage: a stationary track, wheels and means for propelling the carriage on the track: a gripping finger freely hung to the carriage with the opening forward, and having a roller track on its outer face: and guide blocks located opposite the said stationary tracks, one of the said blocks having rollers located on an incline toward the line of travelof the carriage and adapted to engage the said track on the finger substantially whereby an advancing carriage will have its fingers closed.

8. The combination of a pamphlet carriage: a track therefor: a gripping finger freely hung to the carriage: a guide-block inclined to the direction of the carriage: a rail and a roller to travel thereon forming communication between said finger and guide block, the rollers being upon one and the rail upon the other, substantially as described.

4. The combination of a pamphlet carriage body: a gripping finger located opposite the body, and hung midway upon a spring substantially as described whereby the finger is normally held open yet free to adjust itself to the side of a book when closed by external pressure.

5. The combination of a pamphlet carriage having a projecting gripping finger, and a pamphlet receiver having side bars located above and below the path of the said finger and another side bar opposite to each of the ,said side bars, all of the side bars being slanted upward and outward on their inner faces: substantially as described.

6. The combination of a pamphlet carriage having a projecting lug: ways for guiding and means for propelling the carriage: a glue pot: a glue carrying device hung in the pot and provided with an arm having two lugs located in the path of the said carriage lug, substantially as described.

7. The combination of a pamphlet carriage: Ways for guiding and means for propelling the carriage: a stationary glue pot: a glue carrying device fitted to carry glue from said pot to the path of a pamphlet in the carriage: an arm upon the glue carrier: lugs acting pamphlet carriage, two lugs upon one and one upon the other, and one of the said two lugs adjustable along the line of the carriage, substantially as described.

8. The combination of apamphlet carriage: ways for guiding and means for propelling the carriage: a stationary glue pot: a glue carrying device hung in the pot upon a pivoted lever: a spring acting between the lever and a fixture to move the gluing device to the path of a pamphlet in the said carriage, and a stop shoulder to limit its motion and means upon the carriage for moving the gluing device out of the path of a pamphlet carried therein, substantially as described.

9. The combination of a pamphlet carriage: ways for guiding and means for propelling the carriage: a slide plate and means for reciprocating it upon the frame: a cover' table fitted to slide in the same direction upon the slide plate: a pulley upon the slide plate: a cord attached to the cover table and passing over the said pulley: a weight and connections between it and the cord, substantially as described.

10. The combination of a pamphlet-cover carrying table mounted to slide on a plate: the said plate fitted to reciprocate upon a frame: a pulley upon the plate: a spool and drum and a ratchet wheel upon one shaft journaled on the plate: a cord attached to the cover table and to the said spool and passing over the said pulley: a cord and weightconnected with the said drum: a detent for the ratchet wheel and means for disengaging the detent, also mechanism for reciprocating the said plate periodically substantially as de scribed.

11. The combination of a pamphlet-cover carrying table, a balance weight for the table: means for reciprocating the table independently of the weight, and a stop movement opposing the weight, substantially as described, whereby the table may be positively raised upon each other between the arm and the with yielding pressure and then be positively depressed.

12. The combination of a pamphlet-cover carrying-table a positive raising device, and a yielding yet limited balancing device therefor, substantially as described, whereby the table is positively raised and depressed and yet will yield to an obstacle in its rising path.

13. The combination ota pamphlet carriage: a cover applying table adapted to move'toward and from the path of the carriage: and a pair of cheek plates located at the sides of the path of a pamphlet in the carriage: the lower corner of the cheek plates at their inner edge being cut away above the lower faces thereof farther out, substantially as described whereby the said cheek plates avoid the glue which may be pressed out beside the pamphlet when the cover is applied.

14. The combination of a pamphlet carriage: means for advancing the carriage intermittently and for gluing covers onto pamphlets:

a table and means for raising it to the back of a pamphlet in the carriage: a pair of clamping jaws above the table and means for closing them upon the pamphlet simultaneously with the pressure thereon of the table, substantially as specified.

15. The combination of a pamphlet carriage, means for advancing the carriage intermittently, and for gluing covers onto the backs of pamphlets therein: a perfecting table: an arm supporting the table: a cam for raising the arm and table, and jaws located upon the table substantially as described, whereby first, the cover will be closed up beside the pamphlet, and second, the back of the pamphlet will be: pressed into shape at its edge.

16. The combination in a pamphlet covering machine, of a perfecting table: a rockshaft: a cam upon a driving shaft connectedwith the rock-shaft and the perfiecting table to reciprocate the latter: a pair of clamp jaws upon the table,levers connected with the said jaws andpivoted to the table, a wedge hung upon a rock-shaft and fitted to enter between the ends of the said levers opposite the jaws:

a cam upon a driving shaft and connected with the said rock-shaft, the cam being so shaped as to hold the said wedge out of action:

and a weighted arm upon the rock-shaftto move the said Wedge into action, substantially as described.

17. The combination in a pamphlet covering machine, of a perfecting table and means for periodically operating it: clamping jaws upon the table: levers pivoted to the table and connected with the jawsza wedge between the opposite ends ofi the levers: a cam connected with the levers to hold them out of action and a weight to operate them, substantially as described, whereby yielding pressure is produced upon the sides of the pamphlet:

In testimony whereot we affix our signatures in presence of two witnesses.

GEORGE WV. HULL. HERBERT G. HULL.

\Vitnesses:

WILLIAM JARVIS, WALTER S. ADAMS. 

